Connect to eMoticom eM007 ECU

[Ian Lowe]

I have an eMoticom eM007 ECU on a motorcycle which has been developed from the SPC5-L9177A-K02 dev kit. I wish to connect to the ECU to download the bin file so I can learn to tune it. The ECU has a canbus connector with 4 pins +12v, Gnd, CAN-H, and CAN-L. I have purchased the ST-Link-V3MODS board with the view of using the bridge CAN interface to connect to the ECU. How should this be connected as the Bridge CAN only has logic signals Rx/Tx using pins 9 and 10 on CN2. Any help will be appreciated as I don't want to brick the ECU on connection.

Will I be able to use the STM32CubeProgrammer to download the bin file from the ECU and re-flash it once the edits to the tune have been done. Also will it be possible to write on the fly.

[ODOUV.1]

Hello,

STM32CubeProgrammer and ST-Link probe are used to program and debug STM32 processors (ARM based)

Your SPC5-L9177A-K02 product is not using a STM32 but a SPC572L processor (PowerPC based)

You will need SPC5Studio tool to work with it:

SPC5-L9177A-K02 - Small Engine EFI (Electronic Fuel Injection) Reference Design for SPC572L MCU and L9177A Driver - STMicroelectronics

Best Regards.

[Ian Lowe]

I'm not sure I have communicated my question correctly. I don't have the SPC5-L9177A-K02 dev kit

I have an eMoticom eM007 ECU that has a canbus connector with 4 pins +12v, Gnd, CAN-H, and CAN-L. I wish to connect to the canbus to download the bin file so I can use that in a tuning program to learn the tuning process. I will need an interface board and software to download the bin. Will any of you link tools and software packages do this.

[Tesla DeLorean]

Pretty sure the STM32 tools are not going to help you here

This is the SPC5 JTAG tools

https://www.st.com/content/ccc/resource/technical/document/data_brief/99/b2/3e/62/83/15/47/fe/DM00085838.pdf/files/DM00085838.pdf/jcr:content/translations/en.DM00085838.pdf

My expectation is that you're going to need to find an eMoticom programming scene forum to walk you through the processes, and what can/cannot be extracted from the the device.

Figure out what CAN Tools people are using for these boards.

[Ian Lowe]

Hi Tesla, thanks for your reply. I have previously looked at the SPC5-UDESTK JTAG debugger for SPC5 MCUs, This has been designed to plug directly into the SPC5-L9177A-K02 dev kit. Where as I am looking for a USB to CAN adapter which can communicate on the CAN-H and CAN-L canbus port of the ECU. There doesn't seem to be much of a community wishing to tune these ECU's I have only come across one other person who has made up a passthrough cable and downloaded the bin file and he isn't willing to release any information. That's why I have turned to the ST community since STM have been a partner in the development of the ECU.

Regards

Ian

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[DNiemeyer]

Doing some tests I discovered that the OBD2 protocol probably has not been implemented in the system, correcting my sentence above it would be USB : CAN.
I intend to find a ready-made adapter on the market that meets my demand, I ordered some and am waiting for them to arrive.
Do I think there's a chance?